Grease-handling method and mechanism



Jan. 19 1926.

G. STRANDT GREASE HANDLING METHOD AND MECHANISM Filed May 12. 1921 INVENTOR.

Pate'nted' Jan. 19,1926.

UNITED STATES PATENT. oFFic-E.

GUSTAV s'raann'r, or MIL AUKEE; WISCONSIN.

GREASE-HANDLING METHOD AND MECHANISM.

Application filed May 12,

To all whom it may concern: 1

Be it known that I, G'us'mv STRANDT, a citizen of the United States, residing at Milwaukee, county of Milwaukee, and State of Wisconsin, have invented new and useful Improvements in Grease-Handling Methods andvMechanism, of which the following isv grease guns.

More particularly a is the object of this I invention to provide improved grease containers adapted to be usedgin. combination.

with grease guns, to fill "the guns more quickly and easily than has heretofore been possible.

It is a further object of this invention to provide. a grease container which will keep v the grease clean and freefrom grit. Grease has hitherto been kept in pails or tins which 'have'inmany cases been left open and exposed to grit and dirt of all kinds. The only way of removing dirt which falls into an open pail is to .scrape ofi the whole upper surface of the grease in the pail,.the reby wasting large quantities of grease with no assurance that all of the it has been'removed. In the -im rove containers embodyin'g .this invention the case will be fully protected. against all or inary'mish'aps and should the surface become dirty, "the foreign matter can be removed with a minimum of wastage.

Ano her object of my invention is to provide means for filling grease guns in a cleanly. manner. Grease guns have hereto- .fore been filled in a variety of ways, all of which have ordinarily resulted in smearing the outside of the barrel and the hands of the user with grease makin the gun slippery and awkward to hand e. .In the use of the improved grease handling mechanism embodying this invention, the operation of filling the grease container becomes a factory job and when the container is to be em tied it is adapted to be so associated wit the grease gun that the grease may be received bodily into, the gun with no inconvenience and without the loss of any grease whatsoever.

In the drawings: Figure 1 IS a view of a ease conta ner to be used in connection wit my invention,

1921. Serial mi. 468,823.

portions being broken away to expose the grease therein and the retainin caps.

F igure 2 is an end view of t e same.

a container of the form illustrated in'Fig. 1 and thru a portion of the barrel of a grease gun, illustratin the manner in which the grease may be eliv'ered from the container tothe gun.

s Figure 4 is a detail view showing a modified construction of the and container.

Figure 5 is a longitudinal section thru a grease gunand grease container embodying a further modification of my invention.

Figure 6 is. modified form of=grease .con-

tainer.

Figure] is a detail view showing in section the container illustrated in Figure .6 applied to the barrel of a grease gun in preparationfor the charging operation.

reference characters thruout the several views.

My improved method involves the use of cylindrical ease holding cartridges each formed of inexpensive 'materialand each adapted to contain a quantity of grease sufficient to constitute a single charge for a gun of standard dimensions. Containers Figure 3 is a longitudinal section thru Like parts are identified"by the same 1 will be provided in sizes related to the various diameters of standard grease gun barrels to facilitate the chargin of the guns.

The containers preferaily used. are adapted to-be filled and ca ped with similar machinery to; that whic is in common use for fillin'g and capping milk bottles. The 1 cartridges will first be automatically capped at one end, then filled with grease by a filling machine and finally capped'at the other end. The cartridge filling and capping operation is therefore a factory he various 'means whereby the grease gun barrels may becharged by using containers filled. in accordance withhthe foregoing description will be stated hereinafter. It will'be apparent that the novel grease handlingmethod herein set forth may be conveniently considered as involving three steps. The first step is a factory process whereby the containers are mechanically filled in any suitable way by the use of such machinery-as is available in the factory but cannot be made in a convenient form for the economical use of individuals. The -second step is taken by the customer who comprises a cylinder 1 capped at its ends with the disks 2 and .3 w ich are pressed into place and retain their position thruthe frictional, engagement. of their peripheries with the inner wall of the cylinder or tube 1 f It will bevfound that the tube 1 may be constructed either of metal or of some nonmetallic substance such ascardboard which may be waxed if so desired. In filling the tube with grease, one of thecaps or disks 2 is'pressed into place in one end of the cylinder. The grease may then be inserted in any'approved manner by hand or by machinery and theother cap 3.is pressed into place to .close the tube. If desired,.the caps 2 and 3- may be sealed by dipping the end of the tube into parafiin or b otherwise applying paraflin to the joint etween the caps and'the inner wall of the tube. In ordinary service, however, this will not be found necessary. When it is desired to charge a grease gun with grease contained in one of the tubes 1 the cap at the nozzle end of the barrel 5 of the gunis unscrewed; a container of suitable diameter is selected and the cap.3 is pried from one of its ends. The open end is then fitted-within the end of the barrel 5. It will be obvious that cylindrical containers 1 of various diameters must be provided to fit telescopically into the barrels of grease guns of standard sizes. A stick or a preparedplunger 6 will now be introduced into the capped end of the container 1 and pressure may be applied to said plunger to force the cap 2 thru the whole length of the tube, thereby dischar ing into the barrel 5 of the grease gun a ull char e of grease;

It willbe obvlousthat in so charging a grease gun, it will be practically impossible for the grease to become grittygor dirty.

If this should happen, however, the lunger 6 may be used to orce the charge 0 grease a slight distance out of. the container or package 1 whereupon its outer surface may be scraped off with the loss of only a slight amount of grease. It will likewise be practically impossible for any of the grease to come into contact with the exterior surface of the gun barrel 5 or with the hands'of the operator. clean one as-well as being remarkably easy of accomplishment.

The process .is therefore a.

In Figure 4 there is illustrated a slight modification of this invention in which a special grease gun body or barrel 5 is provided with an interior shoulder 7 adjacent to its end against which the wall of the cylinder 1 is adapted to abut so that the charge of grease delivered from the cylinder l-into the barrel 5 of the grease gun will exactly fill the gun. It will be under-- stood that if a slightly larger container.

were selected in the simpler form of the device illustrated in Figure 3 the container -might abut against the extreme end of the barrel 5 and the charge of grease would then exactly fill the gun but in this case there would be some danger that the operator might let the package-or container 1 .slip relatively to the barrel 5 so that some portion of the grease would be discharged upon the outside of the barrel in a position to soil the operators hands and to make his grasp uncertain. The construction shown in Figure 4 insures the registry of the 'container 1 with the barrel 5 of the gun and at the same time provides means for kee ing the inner walls of both the cylinder an the barrel flush. An additional advantage in this construction is that any desired pressure may be applied by means of plunger 6 and will be communicated directly thru cylinder 1 to 'the gun barrel 5 instead of.

tending to cause said cylinder to telescope within the barrel.

In Figure 5, a further modification is shown. In this construction, it will be found advisable (tho not necessary) to make the greasecontaining cylinder 1 ,of metal. Its end may be provided with a beveled portion shown at 8. In this form of my invention the cylinder 1 and its contained charge of grease is adapted to be inserted bodil into the barrel 5 of the grease gun. The eveled portion 8 facilitates the entry of the piston 9 of the gun, into the cylinder 1. When the container and its charge of grease are in place within the gun the nozzle cap will be screwed into place upon the end of barrel 5. and the piston 9 may be operated by the screw 11 and handle 12 or in any well known and approved manner to. expel the grease thru the nozzle 13. It will be understood that in the construction here shown the container 1 o erates substantially as a replaceable liner for the grease gun. It is within the scope of this The cover the cost of the grease therein.

cardboard disks or caps 2 and 3 would be usedvto close a metallic grease container 1 sold in this manner. The purchaser would pry. out the sealing disks, screw the plunger cap 14 and nozzle cap 10 into place, and

have a grease gun ready for use.

In Figure 6 another modified form of grease container is illustrated. This container comprises a cylinder or tube 1 which may be lined with a thin layer-of wax paper 15 flush with the tube at one end 7 and protruding at the other as illustrated. The grease is inserted in the manner already described. The cap 3 is used to close the' ure 7 In this case, it will be apparent that the tube 1 abuts against the end of barrel 5 and the lining. paper 16 extends into the interior of'the' barrel forming a guide to maintain the tube and barrel in registry, to direct the grease into the barrel, and to prevent any lateral discharge thru the joint between the container 1 and the barrel.

It will be apparent that the devices above described satisfy the several objects of my invention as set forth herein.

I claim: 7

As a new article of manufacture, a package of grease including a tubular shell, a

flexible lining disposed Within said shell, and closure caps frictionally retained within said lining, one end margin of said lining being folded over one of said caps and being adapted when distended to comprise a tubular extension beyond said shell to guide the contents of said shellinto a grease gun barrel'of like diameter.

GUSTAV STRANDT. 

